JP3497233B2 - Rice transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter, and more particularly to an improvement of a seedling planting apparatus. 2. Description of the Related Art A seedling planting apparatus connected to a rice transplanter is a seedling mounting table on which mat-shaped seedlings are placed, and seedlings are cut out one by one from the lower end of the mat-shaped seedlings and planted in a field scene. A planting arm, a plurality of leveling floats, and a transmission system for driving them, and the like, are conventionally configured, and in the case of a seedling planting device for multi-row planting such as eight-row planting, the size in the width direction is large, When running on the road or the like during non-working time, the seedling planting device is temporarily separated from the machine body, and the posture of the seedling planting device is rotated by 90 degrees (seedling planting). The lateral direction of the planting device is set to the longitudinal direction of the fuselage), and the lateral end of the planting device is reduced by connecting the side end of the planting device to the vehicle and pulling it. ing. [0003] In addition, even when a truck is used when the rice transplanter is moved, the seedling planting apparatus is often separated from the body so as to fit within the width of the carrier. [0004] As described above, the operation of changing the attitude of the seedling planting apparatus and connecting it to the airframe is not only time-consuming, but also requires time and labor, so there is room for improvement. is there. For the purpose of resolving this inconvenience, the seedling planting device is equally divided into two for each planting strip, for example, and the divided members are connected via a link member or the like so that the posture thereof can be freely changed, thereby extending the machine body in the lateral direction. It is also conceivable that the storage position can be freely switched to a storage position that reduces the amount. Further, in the conventional seedling planting apparatus, a hopper for storing fertilizer, a hose for feeding fertilizer from the hopper, a hose, and a hose so that the fertilizer can be fed to the lower part of the field simultaneously with the seedling planting operation. A fertilizer is provided with a fertilizer and the like that sends fertilizer from the field below the field scene. In addition, the ditches are mounted on the leveling float to supply fertilizer near the seedling planting position. In a conventional rice transplanter, a leveling float for two-step leveling is arranged at a center position in the left-right direction of the seedling planting apparatus so that the level of the seedling planting apparatus with respect to the field is kept constant. An automatic elevating system that drives the seedling planting device up and down based on the change in the ground level is provided. In the case where the thing where the leveling float is arranged at the center position is stored as divided into two as described above, This leveling float will be supported on one side of the divided parts of the seedling planting apparatus. However, when the seedling planting device is equally divided into two, the fertilizer application device is equally divided into two, so that the fertilizer from the left and right fertilizer devices is supplied to the leveling float at the center position, and the hose is supplied. From the viewpoint that the dividing operation is hindered due to the hindrance, etc., appropriate improvement means is desired. An object of the present invention is to arrange a leveling float at a central position in the left-right direction, equally divide a seedling planting device provided with a fertilizer, switch over to a storage position rationally, and overhang the body in the left-right direction. The point is to constitute a rice transplanter whose quantity can be reduced. A feature of the present invention is to provide a seedling planting apparatus configured for planting a plurality of rows in a unit of planting strips having equal left and right sides, and having an equal number of planting arms on the left and right sides. with freely configure divided into One of the divided material, seedlings attitude change of the divided product
The upper ends of the divided seedling rests of the planting device are close to each other,
The seedling mounting device is configured such that the lower end portions of the seedling mounting device can be freely switched between a retracted posture in which the lateral extension of the machine body in the left and right outer positions is reduced and a working posture in which division is not performed. 2 of the center position in the horizontal direction
The land preparation object is supported on one side of the split, and the fertilizer from the other split is fed to this leveling float at the central position. The operation and effect are as follows. According to the above feature, when the seedling planting device is switched to the storage position, the seedling planting device is divided and the divided seedling loading device is divided.
The upper ends of the stand are close to each other, and the lower ends are right and left outer positions.
By changing the posture of the divided object so that it becomes , the center leveling float in the left and right direction is supported by the divided object on one side, and the divided object on the other side with respect to this leveling float By separating the hose that sends the fertilizer from the leveling float together with the ditches, it is possible to largely separate each split, and in this state, set the splits of the seedling planting equipment to the predetermined storage position. Thus, the amount of overhang of the seedling planting apparatus in the lateral direction of the machine is reduced. That is, in the present invention, even if the leveling float is arranged at the center in the left-right direction similarly to the conventional rice transplanter, and the leveling float is also used as a sensor of the automatic elevating system of the seedling planting apparatus, However, even if a system for supplying fertilizer to the leveling float from the left and right divided material sides via fertilizing hoses is provided, the posture of the divided material can be changed without being hindered by the fertilizing system. Therefore, the leveling float is arranged at the center position in the left-right direction, the fertilizing device is provided, and the seedling planting device having the same number of planting arms on the left and right sides is equally divided and rationally divided. Thus, a rice transplanter capable of reducing the amount of overhang in the left-right direction of the machine by switching to the stowed posture was configured. In particular, in the present invention, since the hose and the channel generator are separated from the leveling float in a connected state, the channel and the hose maintain the communication state even when the channel generator is separated from the leveling float. For example, as compared with a method in which a hose and a groove generator are separated from each other, an advantageous effect that the guide route of the fertilizer can be maintained in a favorable state is also exerted. Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, an engine 4 is mounted on a front part of a traveling body 3 having a driven front wheel 1 and a driven rear wheel 2 that are operated by steering. The driving seat 5 is disposed in the vehicle, and the seedling planting apparatus A is connected to a rear end of the traveling machine body 3 via a link mechanism 7 driven up and down by a lifting cylinder 6 to form a riding type rice transplanter. On the right side of the driver's seat 5, there is provided a raising / lowering lever 8 for controlling the raising and lowering of the seedling planting device A and the on / off operation of a planting clutch (not shown). Is provided with a shift lever 9. Note that the planting clutch is interposed in a transmission system from the traveling machine body 3 to the seedling planting apparatus A, and controls the seedling planting apparatus A. The seedling planting apparatus A is provided with a seedling table 10 on which a mat-shaped seedling W is placed, a pair of left and right transmission cases 11 to which power is transmitted from the traveling machine body 3, and transmission from the transmission case 11 through a chain case 12. A rotary case 13 that rotates by power, a pair of planting arms 14 provided on the rotary case 13, and five leveling floats 15, respectively, are configured for eight-row planting, and are placed on the seedling mounting table 10 during work. The planting arm 14 cuts out the seedlings one by one from the lower end of the mat-shaped seedlings W and plants them in the field scene. The five leveling floats 15 are shown in FIG.
As shown in FIG. 1, the center position in the left and right direction, each of these two side positions is configured for two-row leveling, and the right and left side end positions are configured for one-row leveling, as shown in FIGS. Thus, the seedling planting apparatus A has a hopper 16 for storing fertilizer, a feeding mechanism 17 for sending fertilizer from the hopper 16, a hose 18 for feeding fertilizer from the feeding mechanism 17, and a fertilizer from the hose 18 near the planting seedling. Ditcher 19 sent under the field scene at the position
Each of the fertilizer devices is provided, and a groove generator 19 is provided at the rear end of a groove cutting plate 20 fixed to the lower surface of the leveling float 15. In this rice transplanter, the seedling planting apparatus A is configured to be divided into two sections, each of which is four, and the posture of the divided parts of the seedling planting apparatus A is changed by swinging a link member supporting the divided parts. It is configured to be freely switchable between a storage position for reducing the amount of overhang of the body in the lateral direction and a work position for not dividing. That is, as shown in FIGS. 5 and 6, the first bracket 22 formed on both sides of the elevating frame 21 connected to the rear end of the link mechanism 7 has the first support of the vertical shaft center. A first arm 24 is swingably connected around a shaft 23, and a second arm 26 is connected to a swing end of the first arm 24 so as to be swingable around a second support shaft 25 having a vertical shaft center. A second bracket 29 formed on the left and right planting frames 28 and 28 is connected to the swinging end of the second arm 26 so as to be swingable around a third support shaft 27 having a vertical shaft center. On the planting frame 28, a seedling mounting table 10A divided into two sections of four rows, a fertilizer hopper 16, a leveling float 15 divided into two sections of four rows, and the right and left transmission cases 11 are provided. The power from the output shaft 30, which is supported and to which the power from the traveling machine body 3 is transmitted, is transmitted via the bevel case 31 and the pair of transmission shafts 32, 32 to the left and right transmission cases 11, 11.
It is conveyed to 11. As shown in FIG. 4, one of the five leveling floats 15 arranged at the center in the left-right direction (hereinafter referred to as a leveling float 15C) is located on one side (the right side in the drawing) of the divided part. Float 15
Since the hoses 18 from the left and right hoppers 16 are connected to the vicinity of each of the right and left seedling planting positions of C, the groove maker 19 is leveled together with the hoses 18 from the other (left side in the drawing) splits. It is configured so that it can be separated from the float 15C so that the splitting operation of the seedling planting apparatus A can be performed without being hindered by the hose 18. Incidentally, the leveling float 15C at the center position detects the level of the seedling planting device A with respect to the field scene, and drives the elevating cylinder 6 to drive the seedling planting device A.
Is also used as a sensor for maintaining a predetermined level in the field scene (the control system is not described in detail). As shown in FIG. 2 and FIG. 3, the groove-making device 19 which is configured to be separable on the leveling float 15C is provided with a pair of upper and lower brackets 33 projecting from the front surface.
A hole 33A penetrating vertically is formed so that the rod 34 at the rear end of the bracket 33 can be inserted, and the bracket 33 and the rod 34 are engaged with each other by providing a pin or the like for preventing the rod 33 from coming off. The groove device 19 is configured to be separated by moving the groove device 19 upward. As described above, the posture of the divided plant of the seedling planting apparatus A is changed by the swing link system of the first and second arms 24 and 26 so as to reduce the amount of overhang in the lateral direction of the body by changing the posture of the divided material. In addition, when the seedling planting apparatus A is switched from the working posture shown in FIG. After separating from the grounding float 15C, the divided parts can be pulled out to the left and right by an artificial operation to separate the divided parts as shown in FIG. Next, the attitude of the seedling planting apparatus A is divided as shown in FIGS. 9 and 10 by artificially rotating the inner side of the seedling planting apparatus A toward the rear of the machine.
The upper ends of the base 10 are close to each other, and the lower ends are right and left outer positions.
The storage position is switched to the storage position. In order to restore the seedling planting apparatus A, which has been switched to the retracted position, to the working position, the swinging link system is operated in the opposite direction to connect the bevel case 31 to the output shaft 30, and Is connected to the leveling float 15C. [Another Embodiment] In addition to the above embodiment, the present invention may use a structure in which a groove-making device is detachably attached to a leveling float by using a thumb screw or the like, for example, eight or less, or It is also possible to apply to a seedling plant of eight or more lines. Incidentally, reference numerals are written in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by the entry.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a rice transplanter. FIG. 2 is a side view of a connection part of a groove generator. FIG. 3 is an exploded perspective view of a connection structure of a groove generator. FIG. 5 is a schematic plan view of a transmission system of a seedling planting apparatus and the like. FIG. 6 is a schematic plan view of a transmission system and the like of the seedling planting apparatus in a retracted posture. Top view of rice transplanter with seeding device set to working posture [FIG. 8] Top view of rice transplanter with seedling planting device separated [FIG. 9] Top view of rice transplanter with seedling planting device set to storage position [ FIG. 10: Rear view of seedling planting device set in storage position [Description of symbols] 15 Leveling float 15C Leveling float 18 at center position Hose 19 Groove device A Seedling planting device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-284822 (JP, A) JP-A-52-2220 (JP, A) JP-A-59-187917 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) A01C 11/02 A01B 73/06

Claims (1)

(57) [Claims 1] A seedling plant (A) configured for planting a plurality of rows is provided with an equal number of planting arms (14) in left and right equal planting unit units. And a seedling plant (A) by changing the posture of the divided parts.
The upper end portions of the divided seedling rests (10) are close to each other,
The seedling mounting table (10) is configured to be freely switchable between a storage position in which the lower end portions thereof are located on the left and right outer positions and a storage position in which the amount of overhang in the lateral direction of the machine is reduced, and a work position in which division is not performed. Of the plurality of leveling floats (15) provided in the planting device (A), the one for the two-row leveling at the center position in the left-right direction is supported on one of the divided parts, and the fertilizer from the other divided part is supported. A rice transplanter comprising a hose (18) fed to the center-leveling float (15C) and a groove-making device (19) integrally detachable from the leveling float (15C).